The Impact of Modeling Overall Argumentation with Tree Kernels

verfasst von

Henning Wachsmuth, Giovanni da San Martino, Dora Kiesel, Benno Stein

Abstract

Several approaches have been proposed to model either the explicit sequential structure of an argumentative text or its implicit hierarchical structure. So far, the adequacy of these models of overall argumentation remains unclear. This paper asks what type of structure is actually important to tackle downstream tasks in computational argumentation. We analyze patterns in the overall argumentation of texts from three corpora. Then, we adapt the idea of positional tree kernels in order to capture sequential and hierarchical argumentative structure together for the first time. In systematic experiments for three text classification tasks, we find strong evidence for the impact of both types of structure. Our results suggest that either of them is necessary while their combination may be beneficial.

Externe Organisation(en)

Bauhaus-Universität Weimar
Qatar Computing Research institute

Typ

Aufsatz in Konferenzband

Seiten

2379-2389

Anzahl der Seiten

11

Publikationsdatum

08.2017

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Angewandte Informatik, Information systems, Theoretische Informatik und Mathematik

Elektronische Version(en)

https://doi.org/10.18653/v1/d17-1253 (Zugang: Offen)